Underarms
The most important thing about your underarms is to shave them with a razor in the mirror. you must shave only where the hair is. if you shave where the is not you will end up with red patches under there and sometimes they are permanent. the razor i prefer is the Venus Gillette (or Venus for short.) it is the only razor that i haven't cut myself with. now, there is no need to soap or to use shaving cream under your arms to shave there. i learned the dry shave trick from watching the models get shaved before they go out on the run way. and once i tried the dry shave i never looked back. (don't try the dry shave on your coochee or legs)
If your a little overweight you might have to stretch the skin abit to get a close shave. just give it a tug under there on one side with one hand and shave with the other.
As for deodorant. my guy friend and i prefer to use the Dove which is normally thought of to be for women only- like Secret. but i also use the Speed Stick by Mennen in the summer. (Vegas reaches 120 sometimes)
The difference between a deodorant (covers the smell) and an antiperspirant (keeps you from sweating.) some products are both.
There is a great crystal out there that you just wet under the faucet and rub under your arms. it is a natural method. works good if your not a heavy sweater. also, if your afraid of Aluminum Chlorohydrate (something found in most deodorants.) this is a great product. their website is
www.thecrystal.com